Home / 257,867.84-355,852.01-143,139.84

Finding the Fourth Proportional to 257,867.84, 355,852.01 and 143,139.84

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Solution

The fourth proportional to 257,867.84, 355,852.01 and 143,139.84 is: 197,529.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,867.84 : 355,852.01 = 143,139.84 : x
  2. Step 2: Convert to fraction form
    257,867.84/355,852.01 = 143,139.84/x
  3. Step 3: Cross multiply
    257,867.84x = 355,852.01 × 143,139.84
  4. Step 4: Simplify right side
    257,867.84x = 50,936,600,132.93
  5. Step 5: Solve for x
    x = 50,936,600,132.93/257,867.84
  6. Step 6: Final answer
    x = 197,529.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.